北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2004, Vol. 27 ›› Issue (4): 78-82.

• • 上一篇    下一篇

一种新的空时码混合设计准则

张坚强, 蔡志光, 王 皎, 强永全, 李道本   

  1. 北京邮电大学 信息工程学院, 北京100876
  • 收稿日期:2003-08-28 出版日期:2004-04-28
  • 作者简介:张坚强(1973—), 男, 博士生. E-mail:jqchang@linkair.com.cn;李道本(1939—), 男, 教授, 博士生导师. E-mail:daobeili@linkair.com.cn

A New Hybrid Design Criterion of Space-Time Code

ZHANG Jian-qiang, CAI Zhi-guang, WANG Jiao,
QIANG Yong-quan, LI Dao-ben   

  1. Information Engineering School, Beijing Univrsity of Posts and Telecommunications, Beijing 100876, China
  • Received:2003-08-28 Online:2004-04-28

摘要: 对准静态衰落信道、快衰落信道以及介于两者之间的时变衰落信道下的空时码设计准则进行了研究. 考察了空时码的首事件差错概率,并基于首事件差错概率提出一种新的用于时变衰落信道的空时码混合设计准则. 仿真结果表明,依据该混合设计准则得到的新码优于现有好码.

关键词: 空时码, 首事件差错概率, 时变衰落信道

Abstract: The design criteria of space-time code(STC) for quasi-static fading channels, fast fading channels, and the time-varying fading channels are investigated. The first-event error probability of STC is evaluated, and a new hybrid design criterion of space-time code for time-varying fading channels is proposed based on that probability. Some new quadrature phase-shift keying (QPSK) STCs designed by the new criterion are proved, by simulation results, to be better than the known codes.

Key words: space-time code, first-event error probability, time-varying fading channels

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